CN113967515B - High-efficient environmental protection wet process ball-milling equipment - Google Patents
High-efficient environmental protection wet process ball-milling equipment Download PDFInfo
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- CN113967515B CN113967515B CN202111227068.XA CN202111227068A CN113967515B CN 113967515 B CN113967515 B CN 113967515B CN 202111227068 A CN202111227068 A CN 202111227068A CN 113967515 B CN113967515 B CN 113967515B
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- efficient
- ball milling
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- 238000000498 ball milling Methods 0.000 title claims abstract description 32
- 230000007613 environmental effect Effects 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- -1 so that on one hand Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/186—Adding fluid, other than for crushing by fluid energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/002—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with rotary cutting or beating elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/1835—Discharging devices combined with sorting or separating of material
- B02C17/184—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses efficient and environment-friendly wet ball milling equipment which comprises a pulverizer and a ball mill, and further comprises a material receiving device and a water supply pipeline, wherein the material receiving device is arranged at the upper part of an inner cavity of the pulverizer and used for receiving powder materials, one end of the material receiving device is connected with the water supply pipeline, the pulverizer comprises a rotary central shaft with a hollow structure, one end of the rotary central shaft is connected with the other end of the material receiving device, and the other end of the rotary central shaft is connected with a feeding port of the ball mill. The efficient and environment-friendly wet ball milling equipment disclosed by the invention realizes the integration of crushing and ball milling, can effectively reduce the dust of a crusher, reduces the atmospheric pollution and simultaneously effectively improves the ball milling efficiency.
Description
Technical Field
The invention relates to the technical field of material refining equipment, in particular to efficient and environment-friendly wet ball milling equipment.
Background
The existing material grinding generally needs to be carried out through a plurality of processing steps such as crushing, ball milling and the like, firstly needs to be refined through a crusher, then is rotated into a ball mill to grind, and therefore refining processing of materials is achieved.
Prior art ZL201911297409.3 discloses a high-efficient environmental protection wet process ball-milling equipment, and this ball-milling equipment has realized smashing and ball-milling integrated, can effectively reduce equipment volume and area, also can reduce and carry the stroke, reduces environmental pollution. However, the device has many problems, which causes difficulty in actual operation, for example, the position where the hammer head strikes needs to have strong strength, but in the prior art, a filter structure is designed to receive the striking of the material, and has a filtering function.
Disclosure of Invention
The invention aims to provide efficient and environment-friendly wet ball milling equipment which is compact in structure and capable of realizing dry-wet separation, really realizing integration of crushing and ball milling, effectively reducing dust of a crusher, reducing air pollution and obviously improving ball milling efficiency.
The invention is realized by the following technical scheme:
the utility model provides a high-efficient environmental protection wet process ball-milling equipment, includes rubbing crusher and ball mill, still includes receiving device and supply channel, receiving device arrange in rubbing crusher's inner chamber upper portion is used for accepting the powder material, and receiving device's one end is connected the supply channel, rubbing crusher includes hollow structure's gyration center pin, the one end of gyration center pin with receiving device's other one end is connected, the other one end of gyration center pin inserts the pan feeding mouth of ball mill.
Optionally, a plurality of groups of hammer head assemblies arranged along the circumferential direction are arranged on the rotary central shaft, the hammer head assemblies can realize material crushing along the radial movement, a plurality of reinforcing plates distributed at intervals are arranged on the side wall of an inner cavity of the crusher, a plurality of grid strips are arranged at intervals between the reinforcing plates, gaps capable of containing powder materials are formed between the grid strips and the grid strips, and the receiving device can receive the powder materials falling from the gaps when the grid strips rotate to the upper positions.
Optionally, one side of each grid strip is provided with an arc-shaped protruding portion protruding towards the grid strip on the adjacent side, the other side of each grid strip is provided with an arc-shaped recessed portion, and the arc-shaped protruding portions of all the grid strips are arranged along the same direction.
Optionally, receiving device is located the fourth sector area that the inner chamber upper portion of rubbing crusher can avoid the tup subassembly, receiving device includes that the arc connects material hunch portion and basin portion, and the basin portion is located the arc and connects the bottom of material hunch portion, and the arc connects the material hunch portion to accept the powder material that the clearance from the grid strip dropped, the one end of basin portion is connected water supply line, other one end are connected the center of gyration axle.
Optionally, the water tank part is provided with a tank cover, and a gap for powder to pass through is arranged between the tank cover and the arc-shaped material receiving part.
Optionally, the grid bars in odd or even rows of the grid bars are rotatably connected with the inner wall of the pulverizer, and the tail ends of the grid bars are connected through a control rod, and the control rod is connected with a swing mechanism.
Optionally, the housing of the pulverizer includes a cylindrical body portion and an end plate portion, the end plate portion is fixedly connected to the rotation center shaft, two ends of the receiving device are arranged at a gap between the cylindrical body portion and the end plate, and a fixing ring cover is arranged at the gap.
Optionally, the crusher further comprises a base, an arc-shaped rotary table is arranged on the base, and the crusher is arranged on the arc-shaped rotary table.
Optionally, still include driving motor, driving motor through first gear drive with the ball mill transmission is connected, the other end of ball mill is with power take off through second gear drive, second gear drive is connected with third gear drive and fourth gear drive respectively, third gear drive with gyration center pin transmission is connected, fourth gear drive with the barrel part transmission of rubbing crusher is connected.
Optionally, an agitating blade is provided in the center axis of revolution.
The technical scheme of the invention at least has the following beneficial effects:
according to the invention, the water supply pipeline passes through the pulverizer, and after the water supply pipeline is combined by the material receiving device, the material receiving is realized and the water is fused with water, so that on one hand, water flow can take away the pulverized material to avoid material blockage, on the other hand, the efficiency is improved, and then the pulverized material is input into the ball mill through the rotary central shaft, on the one hand, the rotary effect of the rotary central shaft can further uniformly humidify the material, and on the other hand, the feeding effect can be played;
according to the material crushing device, the reinforcing plate and the hammer head assembly are combined, so that the strength requirement for crushing is met, in the rotating process of the crusher, thicker and larger materials roll onto the reinforcing plate at the next stage, and thinner powder falls into gaps of the grid strips and then falls into the material receiving device after the thinner powder rotates to the top, so that the separation of the materials is realized without a screen, the blockage or jamming is not easy to occur, and the efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of an efficient and environment-friendly wet ball milling device according to the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
An icon: 101-a base, 102-an arc-shaped rotary table, 111-a driving motor, 112-a first gear transmission mechanism, 113-a second gear transmission mechanism, 114-a third gear transmission mechanism, 115-a fourth gear transmission mechanism, 120-a ball mill, 131-a barrel part, 132-a fixed ring cover, 133-a rotary central shaft, 140-a water supply pipeline, 151-a water groove part, 152-a groove cover, 153-an arc-shaped material receiving arch part, 161-a hammer head component, 162-a reinforcing plate, 163-a grid strip and 164-a control rod.
Detailed Description
Referring to fig. 1 and 2, a high-efficient environmental protection wet ball-milling equipment, includes rubbing crusher and ball mill 120, and ball mill 120 adopts the wet ball-milling structure, and the rubbing crusher then carries out preliminary crushing back with the large granule material in advance, lets in the fine material ball-milling in ball mill 120 again, integrates rubbing crusher and ball mill 120 integration, can show improvement ball-milling efficiency.
High-efficient environmental protection wet process ball-milling equipment still includes receiving device and water supply pipe 140, and receiving device arranges that the inner chamber upper portion of rubbing crusher is used for accepting the powder material, and water supply pipe 140 is connected to receiving device's one end, and the rubbing crusher includes hollow structure's gyration center pin 133, and the one end of gyration center pin 133 is connected with receiving device's other one end, and the pan feeding mouth of ball mill 120 is inserted to the other one end of gyration center pin 133.
A plurality of groups of hammer head assemblies 161 arranged along the circumferential direction are arranged on the rotation center shaft 133, the hammer head assemblies 161 can move along the radial direction to crush materials, a plurality of reinforcing plates 162 distributed at intervals are arranged on the side wall of an inner cavity of the crusher, a plurality of grid strips 163 are arranged at intervals between the reinforcing plates 162 and the reinforcing plates 162, gaps capable of containing powder materials are arranged between the grid strips 163 and the grid strips 163, and the receiving device can receive the powder materials falling from the gaps when the grid strips 163 rotate to the upper positions. The large granule material of sending into from rubbing crusher one side collects at the reinforcing plate 162 of rubbing crusher bottom, and when gyration center pin 133 rotated, the tup subassembly 161 was through the action of gravity, after the position fell down in the below, struck the material, realizes fining to the large granule material. The barrel 131 and the middle rotary central shaft 133 of the pulverizer rotate respectively, when the barrel 131 rotates, the materials are uneven in thickness, the flow rate is different, the coarse materials flow to the reinforcing plate 162 of the next stage, the coarse materials wait for the next striking and pulverizing, the fine materials flow slowly, the coarse materials fall between the grid bars 163, and the fine materials fall into the material receiving device when the grid bars 163 rotate to the upper side.
In order to enable more materials to fall into the material receiving device, one side of each grid strip 163 is provided with an arc-shaped protruding part protruding towards the grid strip 163 on the adjacent side, the other side of each grid strip 163 is provided with an arc-shaped concave part, and the arc-shaped protruding parts of all the grid strips 163 are arranged along the same direction. The material entering the gap between the grid bars 163 can fall out only when the barrel part 131 rotates to a certain angle, so that the falling time of the fine material is effectively delayed, and the receiving device is convenient to receive the fine material.
The receiving device is located in a quarter sector area, which can avoid the hammer head assembly 161, on the upper portion of the inner cavity of the crusher, the receiving device comprises an arc-shaped receiving arch portion 153 and a water tank portion 151, the water tank portion 151 is located at the bottom of the arc-shaped receiving arch portion 153, the arc-shaped receiving arch portion 153 can receive powder falling from the gap of the grating strips 163, one end of the water tank portion 151 is connected with the water supply pipeline 140, and the other end of the water tank portion is connected with the rotation center shaft 133. The material receiving device is located in a quarter sector of the drawing, on one hand, the material receiving device can avoid the hammer head assembly 161, on the other hand, the quarter sector of the hammer head assembly 161 on the other side is contracted, and on the other hand, the material receiving device is matched with the structural design of the arc-shaped convex part and the arc-shaped concave part of the qualified grid 163, so that fine materials can be released and received just at the position. Due to the design of the arc-shaped material receiving arch portion 153, fine materials can slowly slide into the water tank portion 151, and the problem that the materials are blocked easily due to concentrated sliding is avoided. Enters the water tank 151 and is connected to the water supply line 140 through one end thereof, thereby realizing the water flow to take away the material.
In order to avoid the problem that the moisture in the water tank part 151 evaporates to increase the humidity of the pulverizer, the water tank part 151 is provided with a tank cover 152, and a gap for passing the powder material is provided between the tank cover 152 and the arc-shaped material receiving part. The channel that further reduces moisture flow out like this can reduce humidity, also can realize the collection effect of material.
The grid bars 163 in odd or even rows of the grid bars 163 are rotatably connected to the inner wall of the crusher, and are connected at the ends thereof by control rods 164, and the control rods 164 are connected to a swing mechanism. The swing mechanism can adopt any existing motion mechanism for realizing swing, the cleaning is convenient under the condition that the grating strips 163 are stuck through periodic swing, the period can be not so frequent, and the swing frequency is set according to the stuck frequency.
The housing of the pulverizer includes a cylindrical body 131 and end plates, the end plates are fixedly connected with a rotary central shaft 133, two ends of a receiving device are arranged at a gap position between the cylindrical body 131 and the end plates, and a fixing ring cover 132 is arranged at the gap position. Since the rotation of the rotation center shaft 133 and the rotation of the cylinder 131 are separated from each other, the middle gap position is convenient for connecting the water supply pipeline 140 and the discharge pipeline, but in order to reduce dust and protect the environment, the fixing ring cover 132 with a fixed structure is arranged at the middle gap position and is supported by an external supporting structure.
High-efficient environmental protection wet process ball-milling equipment still includes base 101, is provided with arc revolving stage 102 on the base 101, and the rubbing crusher setting is on arc revolving stage 102.
The high-efficiency environment-friendly wet ball milling equipment further comprises a driving motor 111, the driving motor 111 is in transmission connection with the ball mill 120 through a first gear transmission mechanism 112, the other end of the ball mill 120 outputs power through a second gear transmission mechanism, the second gear transmission mechanism is respectively connected with a third gear transmission mechanism 114 and a fourth gear transmission mechanism 115, the third gear transmission mechanism 114 is in transmission connection with a rotary central shaft 133, and the fourth gear transmission mechanism 115 is in transmission connection with a barrel part 131 of the pulverizer. The rotation center shaft 133 is provided with a stirring blade.
The ball mill 120 is driven to rotate by the rotation of the driving motor 111, and the third gear transmission mechanism 114 and the fourth gear transmission mechanism 115 are driven to rotate by the rotation of the ball mill 120, so that the barrel portion 131 and the rotation central shaft 133 are respectively driven to rotate.
Claims (9)
1. The utility model provides a high-efficient environmental protection wet process ball-milling equipment, includes rubbing crusher and ball mill, its characterized in that: the ball mill is characterized by further comprising a material receiving device and a water supply pipeline, wherein the material receiving device is arranged at the upper part of an inner cavity of the mill and used for receiving powder materials, one end of the material receiving device is connected with the water supply pipeline, the mill comprises a rotary central shaft with a hollow structure, one end of the rotary central shaft is connected with the other end of the material receiving device, and the other end of the rotary central shaft is connected to a material inlet of the ball mill;
the utility model discloses a powder material crusher, including rotary center axle, hammer head subassembly, reinforcing plate, receiving device, grid strip and grid strip, rotary center axle is last to have arranged a plurality of groups of hammer head subassembly of arranging along circumference, the hammer head subassembly can realize smashing the material along radial motion, be provided with a plurality of interval distribution's reinforcing plate on the inner chamber lateral wall of rubbing crusher, interval position between reinforcing plate and the reinforcing plate is provided with a plurality of grid strip, be provided with the clearance that can hold the powder material between grid strip and the grid strip, receiving device can accept the follow when grid strip rotates to the top position powder material that falls in the clearance.
2. The efficient and environment-friendly wet ball milling equipment as claimed in claim 1, wherein one side of the grid bars is provided with arc-shaped convex parts protruding towards the grid bars on the adjacent side, the other side is provided with arc-shaped concave parts, and the arc-shaped convex parts of all the grid bars are arranged along the same direction.
3. The efficient and environment-friendly wet ball milling device according to claim 2, wherein the material receiving device is located in a quarter sector area, which can avoid a hammer head assembly, on the upper portion of an inner cavity of the pulverizer, and comprises an arc material receiving arch part and a water tank part, the water tank part is located at the bottom of the arc material receiving arch part, the arc material receiving arch part can receive powder falling from gaps of grid strips, one end of the water tank part is connected with the water supply pipeline, and the other end of the water tank part is connected with the rotation center shaft.
4. The efficient and environment-friendly wet ball milling device according to claim 3, wherein the water tank part is provided with a tank cover, and a gap for powder to pass through is arranged between the tank cover and the arc-shaped material receiving part.
5. The efficient and environment-friendly wet ball milling equipment as claimed in any one of claims 1 to 4, wherein grid bars in odd columns or even columns in the grid bars are rotatably connected with the inner wall of the crusher and are connected with each other at the tail ends through control rods, and the control rods are connected with swing mechanisms.
6. The efficient and environment-friendly wet ball milling equipment as claimed in any one of claims 1 to 3, wherein the shell of the pulverizer comprises a cylinder body part and an end plate part, the end plate part is fixedly connected with the rotary central shaft, two ends of the material receiving device are arranged at a gap position between the cylinder body part and the end plate, and a fixed ring cover is arranged at the gap position.
7. The efficient and environment-friendly wet ball milling device according to claim 6, further comprising a base, wherein an arc-shaped turntable is arranged on the base, and the pulverizer is arranged on the arc-shaped turntable.
8. The efficient and environment-friendly wet ball milling equipment as claimed in claim 7, further comprising a driving motor, wherein the driving motor is in transmission connection with the ball mill through a first gear transmission mechanism, the other end of the ball mill outputs power through a second gear transmission mechanism, the second gear transmission mechanism is respectively connected with a third gear transmission mechanism and a fourth gear transmission mechanism, the third gear transmission mechanism is in transmission connection with the rotary central shaft, and the fourth gear transmission mechanism is in transmission connection with the barrel body part of the pulverizer.
9. The efficient and environment-friendly wet ball milling apparatus as recited in claim 8, wherein the central axis of rotation has stirring blades disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227068.XA CN113967515B (en) | 2021-10-21 | 2021-10-21 | High-efficient environmental protection wet process ball-milling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227068.XA CN113967515B (en) | 2021-10-21 | 2021-10-21 | High-efficient environmental protection wet process ball-milling equipment |
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| CN113967515A CN113967515A (en) | 2022-01-25 |
| CN113967515B true CN113967515B (en) | 2022-06-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100484537B1 (en) * | 2002-07-24 | 2005-04-20 | 한국수력원자력 주식회사 | Dynamic mill |
| US9358548B2 (en) * | 2013-01-28 | 2016-06-07 | Ecutec Barcelona, S.L. | Milling particles in drilling fluid |
| WO2014168967A1 (en) * | 2013-04-09 | 2014-10-16 | Esco Corporation | Discharge grates for reduction mills |
| DE102014015964A1 (en) * | 2014-10-31 | 2016-06-16 | Pallmann Maschinenfabrik Gmbh & Co. Kg | Apparatus and method for processing feedstock |
| CN106391210B (en) * | 2016-11-01 | 2018-05-29 | 恩平市弘彩数码科技有限公司 | A kind of automatic grinding device |
| CN106925388A (en) * | 2017-03-31 | 2017-07-07 | 成都绿迪科技有限公司 | A kind of stone cracker mill screening plant for building |
| CN107377100A (en) * | 2017-07-10 | 2017-11-24 | 湖北物连网智能用品有限公司 | A kind of centrifugal Status of Grinding Equipments for Chinese medicine for being easy to discharging |
| CN207357261U (en) * | 2017-08-15 | 2018-05-15 | 韩国锐 | A kind of raw mineral materials ball mill |
| CN208050108U (en) * | 2018-01-04 | 2018-11-06 | 北京瑞驰拓维科技有限公司 | Experiment miniaturization graphene grinding device |
| CN208810194U (en) * | 2018-07-13 | 2019-05-03 | 四川英格瑞生物科技有限公司 | A kind of medicinal herb grinder with ball mill |
| CN108994049B (en) * | 2018-07-14 | 2020-08-14 | 山西青舟环境科技有限公司 | Warm steaming thorn sword double screen roller garbage sorting machine |
| CN108817408A (en) * | 2018-08-01 | 2018-11-16 | 芜湖市昌瑞金属粉末有限公司 | A kind of precomminution feeding device of metal powder ball mill |
| CN109382170A (en) * | 2018-10-25 | 2019-02-26 | 安徽康美达面业有限责任公司 | It is a kind of for processing the flour milling machine of flour |
| CN211247341U (en) * | 2019-08-06 | 2020-08-14 | 绿材实业有限责任公司 | Fly ash separator |
| JP7317631B2 (en) * | 2019-08-19 | 2023-07-31 | 三菱重工業株式会社 | Solid fuel crusher, power plant, and solid fuel crusher control method |
| CN110594772B (en) * | 2019-08-21 | 2024-09-24 | 正信德(北京)国际环保有限公司 | Biomass fuel feeding device and biomass fuel furnace |
| CN111036350B (en) * | 2019-12-16 | 2021-07-06 | 许昌学院 | A high-efficiency wet ball milling equipment |
| CN113019656A (en) * | 2021-03-12 | 2021-06-25 | 郑州工程技术学院 | High-efficient mineral exploitation equipment |
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Denomination of invention: An efficient and environmentally friendly wet ball milling equipment Granted publication date: 20220610 Pledgee: Mianzhu Branch of Deyang Rural Commercial Bank Co.,Ltd. Pledgor: Sichuan Ruichi Tuowei Technology Co.,Ltd. Registration number: Y2024980033853 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |